1: inferior vena cava
2: aorta
3: superior vena cava
4: pulmonary vein
Answer:
he would have to take his time ascending up to the surface so be doesnt get the bends which is nitrogen in ur blood. if not he will die lol
They reproduce with different species to make different types of species.
I hope that this helps.
If your pertaining to reps it would be 2 or more as my guess.
Answer:
Explanation: im not sure if it’s true or false but if so it’s true